value quality siderealorsynodic author ref method 14.2690 2 Synodic Hawkins 2008MPBu...35....1H Lightcurve 7.1296 3 Synodic Molnar 2008MPBu...35....9M Lightcurve 7.1300 2- Synodic Erasmus 2020ApJS..247...13E Lightcurve